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Vacuum Pump

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9P1129487
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Vacuum Line Connector. 

porsche

Fits:
Porsche 911 3.2 Carrera - 1984 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998
Porsche 996 - 1997 to 2005
Porsche 997 - 2005 to 2012
Porsche 991.1 - 2012 to 2016
Porsche 986 Boxster - 1997 to 2004
Porsche 987 Boxster / Cayman - 2005 to 2012

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9P1129487
92857471707
9P1129487
92857471705
92857471703
92857471706

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Special Offer
9P1129487/1
Product Information
Product Information
Vacuum Line Connector. 

oematch

Fits:
Porsche 911 3.2 Carrera - 1984 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998
Porsche 996 - 1997 to 2005
Porsche 997 - 2005 to 2012
Porsche 991.1 - 2012 to 2016
Porsche 986 Boxster - 1997 to 2004
Porsche 987 Boxster / Cayman - 2005 to 2012

Click 'Zoom in' for large parts diagram.
Diagram ref no 2 and 13



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9P1129487
92857471707
9P1129487
92857471705
92857471703
92857471706

The product you are viewing cross references to these numbers
DISPLAYING 1 to 2 (of 2 products)
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About Vacuum Pump

Engine Vacuum Pumps, Gaskets, Pipes & Parts – Reliable Vacuum Pressure for Porsche Engines

The engine vacuum pump and its related components — including gaskets, pipes, and fittings — play a vital role in your Porsche’s braking, emissions, and engine control systems. By generating and maintaining vacuum pressure, the system supports crucial functions such as brake servo assistance, turbocharger operation, and crankcase ventilation.

At Design911, we supply a wide range of vacuum pumps, gaskets, pipes, and parts designed for optimal performance across Porsche models. Manufactured using high-grade materials and advanced sealing technology, our components ensure reliable vacuum pressure, leak-free operation, and long-term durability — essential for maintaining your Porsche’s braking response and engine efficiency.

Whether you’re servicing a classic air-cooled 911 or maintaining a modern turbocharged model, our vacuum components provide a perfect fit and superior reliability under all driving conditions.

What Do Engine Vacuum Pumps & Components Do?

The vacuum pump creates negative pressure within the engine system to assist various mechanical and electronic functions.

Core Functions:

  • Generates vacuum pressure for the brake servo, ensuring consistent braking assistance.
  • Supports turbocharger systems in controlling boost pressure.
  • Aids crankcase ventilation and emissions control systems.
  • Drives auxiliary systems that depend on vacuum regulation.
  • Ensures stable engine operation during idle and high load.

The system’s integrity relies on every component — from the pump to the smallest pipe fitting — working seamlessly to maintain consistent vacuum pressure.

Why Do Vacuum Pumps & Components Fail?

Engine vacuum systems operate under heat, vibration, and constant pressure changes, which can lead to degradation or leakage over time.

Common Causes of Failure Include:

  • Worn seals or gaskets causing vacuum leaks.
  • Cracked or brittle hoses and fittings due to heat exposure.
  • Pump wear from oil contamination or lack of lubrication.
  • Corrosion or deformation of pump housings.
  • Blocked or split vacuum lines reducing system efficiency.

Symptoms of failure include hard brake pedal feel, loss of braking assistance, uneven idle, poor boost control, or oil leaks around the pump housing. Addressing these early prevents performance loss and safety issues.

Why Replace Vacuum Pump Components?

Replacing worn or leaking vacuum pumps and related components ensures safe braking, stable idling, and optimal engine performance. Our precision-engineered replacements are built for high reliability and compatibility across Porsche models.

Key Benefits:

  • Restores consistent vacuum pressure and braking performance.
  • Prevents oil leaks and pressure loss.
  • Constructed from corrosion- and heat-resistant materials.
  • Ensures long-term reliability under high engine loads.
  • Direct-fit compatibility with a wide range of Porsche vehicles.
  • Ideal for regular maintenance, rebuilds, or performance servicing.

Investing in quality vacuum system components protects both safety and engine efficiency — a must for high-performance Porsche engines.

Highlights:

  • Precision-engineered vacuum pumps, gaskets, and pipes for
  • Porsche models. Restores proper vacuum function for braking and engine systems.
  • Durable, leak-resistant materials for long-term reliability.
  • Perfect fit for Porsche 911, Cayman, Boxster, Panamera and more.
  • Essential for safe braking, emissions control, and performance tuning.
  • Ideal for rebuilds, repairs, and preventive maintenance.

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